A global tribunal

The parties to the TAO come from more than ninety countries. More than half the cases pit parties from different countries against each other. The breakdown by region reflects both the geography of the art market and the spread of arbitration.
Regions follow OIMAP's nomenclature. Figures are given for 2024, with the change from 2023.
This page presents the breakdown, regional dynamics and their practical consequences (languages, seats, arbitrators).
Cases by region in figures
Source: Registry of the OIMAP Arbitral Tribunal.
Europe and North America
Europe remains the first region of origin of the parties (44%), driven by France, Switzerland, the United Kingdom, Germany and Italy. North America (24%) is dominated by the United States and Canada, with a high proportion of contract and provenance disputes.
These two regions use mainly English and French. They also supply most of the arbitrators on the list, but their share is shrinking as the list diversifies.



Asia-Pacific and Middle East
Asia-Pacific (17%) grew by 21% in one year, driven by the growth of the Chinese, Japanese, Singaporean and Australian markets. Authenticity and contract disputes dominate. The Middle East (8%) rose by 35%, with the development of the Dubai, Doha and Riyadh centres.
For these regions, hearings are often held in Singapore or Dubai, or remotely. The tribunal has accredited new arbitrators and mediators there.
Africa and Latin America
These two regions account for 7% of cases, but are the source of many restitution and provenance disputes. Their participation is growing thanks to support from the Protection Fund and the training of national counsel.
The States of these regions are also among the most active in concluding bilateral cooperation agreements on restitution.
Towards regional offices
The council is studying the creation of regional offices in Singapore and Dubai, which would host hearings, training and Registry services. This project responds to growing demand from users in Asia-Pacific and the Middle East.
It presupposes strengthening local lists of arbitrators and mediators, training registrars and guaranteeing uniform practices.
Breakdown 2024
| Region | Share | Evolution |
|---|---|---|
| Europe | 44% | +6% |
| North America | 24% | +9% |
| Asia-Pacific | 17% | +21% |
| Middle East | 8% | +35% |
| Africa and Latin America | 7% | +14% |
Milestones
- Europe
Almost exclusive.
- North America
Growing momentum.
- Asia-Pacific
Growth.
- Middle East
+35%.
Region of origin and seat



Local or international procedure

Local
Parties from the same region- Common language and culture
- Faster procedure
- Lower costs
About 48%.

International
Parties from different regions- Neutrality of the tribunal
- Cross-border enforcement
- More complexity
About 52%.
Reading the map
- Choose
Region.
- Compare
Shares.
- Observe
Trends.
- Interpret
Context.
- Act
Seat and arbitrators.
Points to watch
A lawyer from Singapore

« Being able to plead in my own time zone and with arbitrators who know our market made all the difference. »
Vocabulary of regions
- Seat
- Legal place of the arbitration.
- Nomenclature
- Classification into regions.
- Cross-border
- Between several countries.
- Regional office
- Branch of the tribunal.
Frequently asked questions
Are country names published?
No, by region.
Can another seat be chosen?
Yes.
Are there arbitrators in my region?
See the directory.
Where can I see the types of dispute?
See By type of dispute.
Useful documents
Contacts

See the breakdown by type of dispute
Image credits (16)
- The Calumny of Apelles, Giorgio Ghisi (1560) — Cleveland Museum of Art, CC0 1.0
- Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439) — Cleveland Museum of Art, CC0 1.0
- Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815) — Cleveland Museum of Art, CC0 1.0
- Carnet (1863–1865) — Cleveland Museum of Art, CC0 1.0
- The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855) — Cleveland Museum of Art, CC0 1.0
- The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760) — Cleveland Museum of Art, CC0 1.0
- Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840) — Cleveland Museum of Art, CC0 1.0
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
- The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530) — Cleveland Museum of Art, CC0 1.0
- Coronation of the Virgin, Christoffel Jegher (1632–36) — Cleveland Museum of Art, CC0 1.0
- The Dance at the Court of Herod, Israhel van Meckenem (c. 1500) — Cleveland Museum of Art, CC0 1.0
- The Doge's Palace, Venice, Richard Parkes Bonington (1826) — Cleveland Museum of Art, CC0 1.0
- The Triumph of Mordecai, Lucas van Leyden (1515) — Cleveland Museum of Art, CC0 1.0
- Seal with Two Qilin Playing (1849) — Cleveland Museum of Art, CC0 1.0
- Plaque (1500s–1600s) — Cleveland Museum of Art, CC0 1.0
- Chemin de fer de Toulouse à Bayonne. Pont de l'Aran (en trois arches de 17m d'ouverture chacune). Situation des travaux au 21 juillet 1861, Édouard Baldus (1861) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0
TAO statisticsThe figures of art arbitration: cases per year, by region and by type of dispute, since the tribunal's creation in 2011.›
Cases per yearEvolution of the number of requests, awards, mediations and durations between 2011 and 2024.›
Cases by type of disputeContracts, authenticity, provenance, restitution: the breakdown of TAO cases, durations and outcomes by type of dispute.›